Hair drier



April 23, 1935. F, Ml CROQK ET AL 1,998,924

HAIR DRIER Filed Dec. 26'. 1951 3 Sheets-Sheet 1 am a ze a Q s V il f ATTORNEY.

April 23, 1935. F. M. cRooK Er AL 1,998,924v

HAIR DRIER Filed Dec. 26, 1931 3 Sheets-Sheet 2 rf mmm 60 L.. ...2me

l l n ATTORNEY.

April 23, 1935s F M CROOK ET AL 1,998,924

HAIR DRIER Filed Dec. 2e, 1951 :s sheets-Sheet 3 INVENTORS. qb (breder/ck, N. Crook Patented Apr. 23, i935 f UNITED sTATssPATENT OFFICE HAIR DRIER Frederick M. Crook and Eugene Caster, Kansas City, Mo.

Application December 26, 1931, Serial No. 583,196

4 Claims.

heated dry air over the hair of the person seated beneath the hood.

The principal objects of the invention are to effect adjustment of a hood of hair drying apparatus to heads at diierentelevations and to assure and accelerate proper distribution of heated dry air through portions of the mass of hair of the subject.

Other objects of the invention will be apparent kin the course of the following description of one form of apparatus embodying the invention and illustrated in the accompanying drawings wherein:

Fig. 1 is a perspective view of apparatus constructed in accordance with the invention illustrating three customers to whose heads of hair three of the hoods are adjusted.

Fig. 2 is an `enlarged view oi. portions of the heater, fan casing, conduits and air distributing members including a branch pipe having a hood attached thereto, the parts being shownpartly in section and partly broken away, and illustrating the adjustable mounting of the tubular stem of a hood on a branch pipe.

Fig. 3 is a further enlarged section through the apex of one of the hoods and giving a perspective view of the end portion of the branch pipe and a conical deiiector located at the apex of the hood.

Fig. 4 is a section on the line 4-4, Fig. 6, illusy trating the valve controlling ilow of ,airthrough the branch pipe toward the hood.

Fig. 5 is an enlarged fragmentary perspective view of telescoping stem and branch pipe portions, partly in section and partly broken away.

Fig. 6 is a vertical section through the adjacent ends of the branch pipe portions and the valve, a hood-retracting spring being shown fragmentarily.

Referring more in detail to the drawings:

Ill designates a conduit mounted on posts I2 and formed of sections I4, each 'provided with downwardly projectingbranch pipes including upper and lower sections or portions I6 and I1 for supporting hoods I8 in approximately the proper position for discharging heated dry air to the hair of customers seated below the hoods, as later described. The upper portions I6 of the branches are preferably made integral with the sections, for example. by welding, and convex walls -2li connecting the pipes to the sections form curved edges over which air may move into the branches.

The outer end of the conduit is closed and the i inner or right hand end in Fig. 1 is connected to a fan housing 22 having anlinlet pipe 24 Aconnected to a heater 26 supported on a skeleton frame including legs 28. The conduit thus forms a manifold for distributing air to the branches.

'I'he heater 26 includes av vertically positioned inner drum 3B having an imperforate upper end wall 32. Transverse header plates or walls 34 and 36 are located respectively in a position spaced slightly from the end wall 32 and at the lower end of the drum, thus forming a ue chamber 38 at the upper end of the drum and a second larger air chamber between the' two headers.

Tubes 40 having opposite open ends mounted in openings 4I in the headers conduct a heating l medium through the larger chamber, a heating element such as a gas burner 43 being mounted on a suitable bracket 44 below the drum to supply the heating condenser.

The vertical walls of the inner drum 30 are preferably extended taperingly downwardly to provide imperforate walls for supporting the. burner bracket, and form a housing for the burner. Air is thus drawn by the operation of the heater through the bracket intothe tubes 40.

VA second drum 45 surrounds the first named drum in spaced relation therewith to hold -insulation between the drums. The double-walled heater includes wall portions 46 and 41, Fig. 1, the portion 46 being provided with a screened air inlet port 48 whereby the air chamber communicates with atmosphere and with a gas outlet port 49 from the chamber 38 provided with a ue 5I).A The wall portion 41 has an opening 52 to which the fan inlet pipe 24 is connected.

The portions I6 and I1 of each branch pipe are connected by acollar 54 mounted on the lower end of said upper portion I6 and xed thereto by fasteners. such as rivets 55, the lower `encl edge of the pipe portion I6 registering with the lower end edge of the collar.

Extending outwardly radially from the lower end of the cylindrical collar 54 is a bracket-like iiange or wing plate 56 having width slightly greater than the external diameter of the collar and a lower face lying substantially in the plane of the lower end edgeof the pipe portion I 6 and at right angles to the axis of said pipe portions, to form the upper side of a casing or guide for a sliding platevvalve as presently described.

A circumferential external boss 58 formed at the upper end of the branch pipe portion I1 has an end face in the plane of the upper end edge of saidpipe portion, and an outwardly oi!- set segmental portion of the boss is extended upwardly to form a rim 60 against which a peripheral portion of the end of the collar 54 abuts, as shown in Fig. 6. A groove-like seat 62 is thus formed at the upper end of the pipe -portion I1. y

A plate ange or wing E4 similar to the wing 58 and extending radially from the boss 58 at the open side of the rim 60 has an upper face registering with the seat 62, and is provided with upstanding spaced edge flanges or rail portions 85 and E6 forming continuations of the rim 60 and engaging the peripheral portion of the plate 58.

Suitable means are provided for securing the branch pipe portions together and seallngly connecting the valve casing members,such as ears 61 on the boss and wing 64 apertured for passing bolts therethrough into similar-ears on the collar 54 and upper plate 56.

The rim 60 and rail portions 65 and 66 thus space the wings and form the retaining wall or guides of a casing for a plate valve 68 slidable on the lower wing into and out of position to close the passage through the branch pipe, as

A best shown in Fig. 4.

The valve has an arcuate recess 10, and the rounded end 12 of a valve operating lever 14 pivoted at 16 to the wing 64 operates in the recess on the valve. The lever projects outwardly from the casing through a slot 18 formed by the spacing of the rail portions 65 and 56.

vternal groove 82 formed in the branch pipe I1,

and conforming to the angular cross section of the groove to key the pipe and sleeve against Y rotation relatively to each other. AA longitudinal groove 83 diameti'icallyopposite the groove 82 forms a track for the rounded end of a set screw 84 threaded in a boss 86 of the hood sleeve. The screw may be moved into frictional engagement with the wall of the grooveI 88 to latch the hood sleeve at a selected position on theY branch pipe portion |'1.

The grooves preferably comprise portions of the pipe wall impressed to confer desired cross sections on the grooves.

The upper end of the sleeve is provided with a peripheral collar-like boss 81 having an internal annular groove to accommodate packing 88 for sealing the joint between the movable sliding sleeve and the pipe portion I1 as shown in Figs. 2 and 5.

The lower end of the sleeve flares as best shown in Fig. 3, and has a lower en d edge or nat rim portion 89 overlying the attened apical portion of the dome-like hood `|8 around the apical opening 90 in the hood. The rim portion 89 is xed to the apical portion of the hood by suitable fasteners. such as rivets or bolts 9|.

The wall of the hood curves outwardly from` the apical portion and then has substantially cylindrical form to the peripheral edge or rim, thus forming ailaring inner surface. A separate rim 92 is preferably provided having an inner, edge abutting the-lower edge of the hood and having ears 93 overlying the inner surface of the hood whereby boltsvmay be mounted in registering openings of-the hood and earsr for securing the rims to the hood.. The rim is curved inwardly throughout the periphery' of the hood edge, and then curved retractively'to form guard,

rails or deilectors for turning air currents laterally and upwardly toward the top' of the subjects head and the apex of the hood.

In order to distribute heated dry air more effectively into yand through the hood and through the hair, the hood is further provided with a baille or deflector 94 comprising a circular conical block having a convex upper surface and provided with a plurality of annularly disposed openings or bores 86 having axes inclined slightly downwardly inwardly with reference to the axis of the baille as shown in Fig. 2. Wings or strips 98 attached to the edge of the block at the base thereof pass divergently upwardly through the opening 90 and have upper ends fixed to the flaring portion of the sleeve by suitable means such as welding.

Attention is called to the vertical spacingof the apex of the conical baflle from the upper end of the hood, the location of the axis of the baille in the axis of the hood, and the lateral spacing of the base edge of the baille from the edges of the hood inletl opening 90. The bores 86 are angular to the convex face and axis of the baille and the sleeve is inclined to the axis of the hood, and the base of the baille is parallel with the flattened apical end of the hood.

The means above referred to for retaining the hood sleeves in operating relation with the related branchl pipes includes in each instance a screw |80 removably nxed to the pipe at the lower open end of the groove 82 to engage the lower end of the rib 8| when the sleeve has been extended a substantial distance.

A spring |02 has a lower end anchored to an ear |04 on theapex of the conical dellector and extends upwardly through the sleeve and branch pipe portion I1 to a bar |86 mounted in recesses |08 formed in the seat 62 as best shown in Fig. 2.

The spring lis thusanchored to the hood and to the xed branch pipe, and tends to return the sleeve and hood to and hold the same in retracted position. A handle H0 is nxed to a boss Il! on the sleeve for extending the hood.

The result of the structure illustrated is that air currents tend chiefly to move toward the back or depressed portion of the hood as shown in Fig. 3, and are largely deflected into this portion by the baille. Some of the currents however are deflected toward the front portion of the hood, and relatively small amounts of air may pass through the bores of the baille toward the top of the sub- 4:lects head.

pipe having a longitudinal groove, a hood having a stem sleeved onthe pipe and provided with an internal rib moving in said groove, means movably mounted on the. stem for frictionally latching the sleeve to the pipe to retain the hood in adjusted relation with the pipe, and means mounted'on thepipe in one end of said groove ducting tube, a hood secured to the ltube in angular relation thereto having an apical opening in communication with the hood and having a nape tting portion, and a deector disk carried by said tube in angular relation to the axis thereof and spaced below the apical opening for deiiectingthe major portion of the air downwardly toward said nape tting portion.

3. In a hair dryingdevice, a vertical air conducting tube terminating at its lower'end in an outwardly iiaring rim portion in angular relation to the tube, a hood having a nape tting portion and a attened apical portion provided with an opening registering with the tube, means forse' 'curing said rim portion tothe flattened portion of the hood, and a deflector associated with the opening and in parallel relation to said rim and oil'set laterally from the axis of the tube for deecting the major portion of the air downwardly toward said nape tting portion.

4. In an apparatus of the character described including a. hood having a downwardly curved wall adapted to cover a head of h air of a person and having an air inlet, means for delivering heated air to the interior of the hood through said inlet, a deector disk having approximately the diameter of said air inlet in the hood, means supporting the deflector disk below said inlet for directing the air for travel downwardly in guided contact with saidwall, and a deector member carried by the wall and having an upwardly curved deflecting portion for deilecting the air travelling down the wall upwardly through the hair in the direction of said deiiector disk.

FREDERICK M. CROOK. EUGENE CAS'I'ER. 

